NICBLOK Hexadecimal
Displacement
------------
8
A
C 10 14
18
2
3
8
A
C
Field
Name !!.!1§ NICSDLC EQU NICLBSC EQU NICSWCH EQU NICMLTP EQU NICTELE EQU NICCIBM EQU NICRCPU EQU NICRSPL EQU NICGRAF EQU NIC3271 EQU NIC3275 EQU NICOPRDR EQU NICRCNT DS NICVRID DS NICTMAT DS NICUSER DS NICQPNT DS NICDSP DS Field Description, Contents, Meaning in NICTYPE (cont.) X'08'--- LINE -Synchronous data link control X'04' LINE -Binary synchronous line control X'02' LINE -Switched line interface X'01' LINE - Multiple-drop leased line X'10' TERM - Telegraph line adapter X'08' TERM - Selectric-based terminal X'04' TERM - Bisynch remote computer X'02' TERM - Bisynch remote spool device X'01' TERM - Bisynch remote graphics X'08' Graphic device -3271 control unit X'04' Graphic device -3275 standalone display
station X'10' Graphic device -card reader feature
1H
1H
1F
1F
1F
1D
Retry count for BTO errors Virtual resource ID when dedicated TOD clock value when attached VMBLeK address of associated user Pointer to input BTU chain
Remote 3270 information ORG NICDSP NICRSV1 DS 1X NICDTYPE DS 1X NICDTYPE NICD3277 EQU 1'04'--- NICD3275 EQU X'02' Reserved for IBM use Display station type
3277 display station
3275 display station NICMDL DS NICRSV2 DS NICRSV3 DS 1X Display station model 1X Reserved for IBM use 1X Reserved for IBM use NICSIZE EQO (*-NICBLOK)/8 Size of block in doublewords (X'03') - 127Q ORG NICEPAD NICCORD DS 1X NICTMCD DS 1X NICTABF EQU NICSIO EQU NICAPL EQO NICTEXT EQO in NICTMCD -X'80'- X'40' X'20' X'10' ORG NICRCNT
NICSELT NICPOLL NICATRB DS 18 DS 1H DS 1F
Current line coordinates
Terminal mode Second scan of screen's input area DIAGNOSE issued to input area APL cn for 3270 remote
Text feature on for 3270 remote
Remote station selection characters
Remote station polling characters
Timer request block address VML37.Q of l1 0x WRITBRK EQU X'09' Write break CCW operation code RDBOFLN EQU 96 Length of host read buffers RDBUFNO EQO 6 Numher of host read buffers Q) Peculiar to the 370x IPLREQ EQU X'02' ----IPL-required==3705 inactive ABORT EQU X'01' Buffer depletion--transfer terminated
62 IBM VM/370 Data Areas and Control Block Logic

NPRTEL NPRTBL lists by naae all pages saved and indicates the DASD volume that contains the
saved image. o NPRPNT 8 10 18 NPRSTART Hexadecimal Field
Displacement Name
o
4
8
10
16
17
18
lC NPRPNT DS NPRRSV1 DS NPRNAME DS NPRVOL DS NPRCNT DS NPRRSV2 DS
NPRSTART DS NPRPAGCT DS NPRVOL 1F
1F C18 CL6 1X 1X 1F
1F lIPRNI!!E NPRRSV1 N*l N*2 NPRPIGCT Field Description, contents, Meaning Chain pointer to next entry
Reserved for IBM use
Reference name for image library Volume of DISD containing the
saved image N*l Number of 3800s active on this image
N*2 Reserved for IBM use CCPI of first page on NPRVCL Number of pages saved
Section 1. CP Data Areas and Control Blocks 63